During what was supposed to be a relatively simple hunt, Y/N accidentally triggered an old spell hidden inside the ruins of a house that once belonged to a witch. At first, nothing seemed different — or at least that’s what everyone thought. It wasn’t until they returned to the bunker that Dean and Sam started noticing something was… off. Y/N was still herself. She still laughed at stupid things, made chaotic messes during research, and threw in her usual dorky comments. But something that had always held her back was suddenly gone. She no longer looked away first. She didn’t pull her hand back after accidental touches. She didn’t blush whenever Dean flirted with her anymore. If anything, she flirted back. Too confidently. Too calmly. Too close. Sitting next to them suddenly meant almost no personal space at all. Brief touches turned into hands lingering a second too long. Jokes became more dangerous. Eye contact heavier. And the worst part? Y/N looked like she was genuinely enjoying watching them slowly lose every functioning thought in their heads. Castiel eventually discovered that the spell hadn’t changed her personality at all — it had simply removed her emotional inhibitions and restraints. Everything she did, every glance, every touch, every unbearable bit of tension… had always been there. She just wasn’t hiding it anymore.